topic Re: Projections on sketches result in light-blue areas with wrong angle. - Fusion in Fusion Support Forum

Projections on sketches result in light-blue areas with wrong angle. - Fusion

oprcmr00 — Sat, 29 Nov 2025 00:14:39 GMT

Hello,

Sometimes upon making a sketch on a surface, this happens:

1) Despite having "auto-project" on in the preference, the auto-projection doesn't happen.

2) Strange light-blue colored areas appear on it. I've searched everywhere and have not found informations about it.

3) These light-blue area behave very weirdly. They are not planar with the plane of the sketch, instead they have a very small distance and angle to it.

4) The whole "bug" can be avoided by constructing an offset plane on the surface, opening a sketch on the offset plane, then projecting on the offset plane.

I only direct model and never use parametric design.

Can you suggest something?

This post has been edited due to: @heather_tracy added the product to the title to help more community members find this topic.

Re: Projections on sketches result in light-blue areas with wrong angle. - Fusion

heather_tracy — Tue, 25 Nov 2025 20:51:28 GMT

Hi @oprcmr00,

I wanted to check in and see if you still needed assistance, or if you found a solution to your question already? Let us know if you need further assistance by providing an update or if you have found a solution, please share it with the community so other members who may have the same question could learn from your experience.

All the best,

Heather | Community Manager

Re: Projections on sketches result in light-blue areas with wrong angle. - Fusion

oprcmr00 — Sat, 29 Nov 2025 00:16:27 GMT

If you don't know, it's ok. If you know, SUMMARY: "What are the light-blue colored areas in sketches?", appeared with an update about 1.5/2 years ago?

Re: Projections on sketches result in light-blue areas with wrong angle. - Fusion

davebYYPCU — Sat, 29 Nov 2025 01:03:33 GMT

Light blue shading is known as a Profile. In a sketch Palette you can opt to show or hide it.

Fusion - about that time you refer to - decided not to draw (reducing clutter! and confusing some users) the purple boundary articles that make the profile.

Your work around, to create the visible purple outlines is also well known.

I make no comment about behaviour that does not involve Timeline modelling.

Might help...

Re: Projections on sketches result in light-blue areas with wrong angle. - Fusion

TheCADWhisperer — Sat, 29 Nov 2025 01:55:03 GMT

@oprcmr00

There is something fishy here that is not symmetrical to the other side.

This sort of anomaly would be easy to diagnose if Capture History was enabled.

Re: Projections on sketches result in light-blue areas with wrong angle. - Fusion

lauri_barnhart — Fri, 12 Dec 2025 15:10:52 GMT

Hello, @oprcmr00,

Just checking in—did the responses shared by @davebYYPCU or @TheCADWhisperer help clarify your question?

If so, please consider clicking the "Accept Solution" button on the post(s) that solved your problem. Doing so helps others in the community easily find useful answers.

If your question still needs more attention, feel free to reply here with an update. This way, other members can jump in with further suggestions or guidance to help you move forward.

All the best,

Lauri | Community Manager